Electric switch.



C. l. KLEIN.

ELECTRIC SWITCH.

APPLICATION FILED AuG.|4,1912.

Patented Jan. 11, 1916.

n A s CHARLES J. KLEIN, OFMILWAKEE, WISCONSIN, ASSIGNOR TO THE CUTLER-HAMMEB MFG. C-O., OF MILWAUKEE, WISCONSIN, A CORPORATION OF XVISCONSIN.

ELECTRIC SWITCH.

17 'o all 'whom t may concern:

Be it known that I, CHARLES J. KLEIN, a citizen of the United States, residing at Milwaukee, in the county of Milwaukee and State of IVisconsin, have invented new and useful Improvements in Electric Switches, ot which the following is a full, clear, concise, and exact description, reference being had to the accompanying drawing, forming a part of this specification.

My invention relates to electric switches.

It has among its objects to provide an improved electric switch especially adapted Bto use in connection with electric lamp sockets.

A further object of my invention is to provide an improved and simplied construction and arrangement of conducting and insulating parts for the switch mechanism whereby the terminals of the switch are readily accessible and the device may be very cheaply and compactly made.

Other objects and advantages of my improvement will hereinafter appear.

In order to clearly and fully disclose my invention I have illustrated .one embodiment of the same in the accompanying drawing.

Figure 1 shows a central longitudinal sectional view of the switch in position in a lamp socket. Fig. 2 shows a top plan view of the construction shown in Fig. 1, the socket cap being removed. Fig. 3 shows a bottom plan view of the same. Fig. 4 shows a sectional view on line 4 4, Fig. 1. Fig. 5 shows a sectional view on line 5-5, Fig. '-1, the casing shell being removed.A

The switch mechanism is inclosed in an insulating base, divided horizontally into two parts, 1 and 2, and held together by vertically extending screws 3 and 4. This base is suitably supported in a lamp socket 5, as for instance by laterally extending lugs 6 on the part 1. thereof. The part Q of the ,base is provided with flat vertically extending sides, along which extend binding posts 7 and 8 to which the conductors leading tothe switch are connected.

The switch mechanism' is of the type described and claimed in my copc'nding application, Serial No. 623,903, tiled April 28, It includes a push button operated cam member 9 and a rotary contact member l0 pivoted upona spindle 11. Upon the reciprocation of this cam member the contact member acts to compress a coiled spring 12 surrounding the spindle 11. 4After a pre- Specicaton of Letters Patent. Patentad Jim1, Il, 11916.

.Application filed August 14, 1912. Serial No. 715,049.

determined movement of the cam member Athis spring actuates the contact member -to make or break the circuit with a quick snap action at resilient stationary contacts 13 and` 1t located in recesses 15 and 16, upon opposite sides of part 2 of the base. These stationary contacts 13 and 14: are provided with vertically extending contact surfaces. The non-contacting ends of the same are bent over, asshown in Fig. 5, so that a portion of the same lies parallel with the bottoms of the recesses 15 and 16 at right angles to the contacting surfaces. Screws 17y and 18 are used to tix the same to the bottoms of the recesses. These screws extend through the base 2 to the opposite side thereof. The contact 13 is connected to a resilient center contact 19 by the screw 17. As shown in Fig. 3, this contact is surrounded by an insulating wall 20 and is prevented by a portion of the samel'rom coming in contact with the end of the spindle 11. Thel other contact 14 is connected through the screw 18 with the binding post 8; the terminal plate 21 for the ,80

latter being secured in a recess upon the bottoni of the base 2 by said screw and being provided with an upwardly extending-por tion which carries the binding post.

A threaded conducting shell is ixed to the bottom of the base by means of they.'y

screws 3 and 4f, the threaded ends of the;

same being threadedV in a clamping conduct-l ing plate 2st of substantiallycrescent shape which is received within the overturned up per end of the shell. This conducting platey Q-.t is provided with an upwardly extending lug or extension 25 integral therewith, upon which is carried the binding post 7. As illustrated in' Fig. 5 the upper end '2G of the threaded shell is bent inward at right anglels and snugly fitted between the bottom of tlte base and the plate 2l, being insulated fro the base by an insulating washer 27. Belli the inturned end of the threaded shell and the washer are provided with suitable cutaway portions to permit the passage of tie extension 25 and the wall :20 upon the b ttom of the base. As illustrated, the botto'm of the base is also provided with reces `es tact ofthe device. The threaded conducting the desired form. ln order to increase the Sil compactncss of the device the upper base is provided with suitable conductor grooves 2S leading' to the binding posts on the lower base. ,f ilhile l have described one embodiment oit my invention herein it is to be understood that the ame is susceptible of modification. What I claim as new and desire to secure by Letters Patent ot the United States is:

l. ln combination, a base having fiat vertical sides, a snap switch mechanism carried thereby, contacts for said switch mechanism, a threaded conducting shell carried on one -face of said base, a conducting plate clamping said shell to said base, and terminal members for said switch mechanism carried upon the vertial sides ot' said base, one of said terminal connections being integral with said conducting plate and the other being directly connected to one oi said switch contacts. y

2. in an electric switch, the combination oi: a horizontally divided two-part base having liat vertical sides, means for holding the parts pf said base together, a snap switch mechanism carried between the parts ci? said base, terminal plates fixed to the bottom of one part of said base and having integral extensions upon the fiat vertical sides of said base, yand binding screws carried by said extensions.

3. ln combination, a. horizontally divided two-part base, one of the parts of said base having vertically extending conductor grooves, while the other part offv said base is provided with flat vertical sides, a switch mechanism housed between the parts of said base, contacts therefor carried upon one of the parts of said base, and terminal plates fixed to the bottom of said part of the base and having integral extensions resting upon the dat vertical sides of said part opposite the endsr ot the conductor grooves in the otherpart of said base.

d. ln a lamp socket, in combination, an

insulating'base, a screw shell carried on the outer tace thereof, a center contact for said shell ixed marginally on the outer'f'ace ot said base, said shell` having anv inturned Licence flange overlapping a portion of said contact, an insulating disk interposed between said flange and said Contact overlapped thereby, and conductor terminals for said Contact and said shell arranged on the sides of said base.

5. In a lamp socket, in combination, a circular insulating base, a screw shell contact and a lcenter contact therefor mounted on the outer face of said base, conductor terminals 'for said contacts on opposite sides of said base, a switch mechanism mounted on the inner face of said base and arranged to control circuit between one of said conductor terminals and its associated Contact, said mechanism having an exposed conducting part on the outer face of said base overlapping a portion of said contact in the other circuit branch, and an insulating member interposed between said last mentioned Contact and said conducting part overlapped thereby. v

6. ln a lamp socket, in combination, a circular insulating base, a threaded conducting shell carried on the outer face thereof. a center contact for said shell fixed to said base, conductor terminals for said shell and said contact, a switch mechanism carried by said base and arranged to control circuit between said center contact and the terminal thereof, said mechanism having a conducting part adjacent said shell, an insulating member interposed between said conducting partand lsaid shell adjacent thereto, and means for securing said shell to said base, said means also clamping said insulating member against displacement.

7. ln combination, atransversely divided two-part insulating base having a substantially closed chamber and alined apertures in opposite side walls, a snap switch mechanism mounted on one of the parts ofisaid base within said chamber and having a reciprocating operating member extending through said apertures, a terminal for said switch mechanism secured to the outer face of one part of said base and having a 4depending centrally disposed contact portion, a threaded lamp shell having an apertured fiange carried on the outer face of said last mentioned part of said base, an annular insulating disk interposed between said flange and said base, and means extending through the parts of said base, said disk and said flange for securing all of the same together.

ln witness whereof, l have hereunto subscribed my name in the presence of two witmesses.

CHARLES J. KLEN. Witnesses:

F. H. RocKwnLL, Jn-ANETTE S. BROCK.

tentes of? this patent may be obtained for-ave cents each,` by addressing the Commissioner of viPatents. Washington, DJG. 

